Urgent im nervous

I am 15 male, and going for a physical what will happen? I'm Nervous! Answer Quick please..What will take place? What will the doc exam?

I'm not very sure sense I'm a girl, but as a girl that has a had a physical, they do check out your..."nether regions" and I expect they do to boys as well. Don't worry too much though; its all standard medical procedure and they make it the least invasive as possible.